Safari is the most used, probably because most people just use what's there. I've used them all over the years, abandoning this one because it doesn't do that, or trying that one because it does this. None have met all my wants. I currently use Firefox, but that'll probably change again. Maybe try a few and see how YOU like them.

I personally prefer Firefox, especially with its superior developer tools. I also find that it runs faster for me. Chrome is good too, but FF suites my web development needs. Safari seems too, I don't know, placid.

I use Firefox, it isn't the fastest but it works with ALL the sites i visit and has really good addons. Chrome and Safari don't work with certain sites very well. If you want speed Chrome is your best bet. Safari is crap imo.

Chrome has always been the fastest, but it also uses the most ram as it gives each tab/window its own process and somehow doesn't give that ram back until you quit. Sometimes I'll max out my 4GB of ram and have to close Chrome and that alone clears up 2GB. I do keep about 20 tabs open at a time though, so I'm not a normal user.

Safari just isn't quite there for me as a web developer. Not sure what it is, but it feels clunky compared to Chrome most of the time.

Haven't used Firefox as my primary in 2 years, because it was always much slower than Chrome. Maybe its improved now but I've gotten used to Chrome. I also like that Chrome saves my tabs whether I quit or if it crashes and even keeps me logged into gmail, etc when it reopens tabs. Safari always tends to reset logins (which I guess is actually better if you're using a laptop that could get taken from you easily)

I have all three browsers: Chrome, Firefox and Safari next to each other on the Dock - Safari currently has a massive memory-leak - with some bad websites using up to 8GB of 'Safari Web Content' of the 10GB RAM on my Mac mini. This doesn't happen on Chrome! Problem with Chrome is that everything I type in Chrome appears in adverts around the webpage for the next few days - The Google Bubble effect!!!
I use Firefox as a TOR client for 'escaping the bubble' and with the TrackMeNot random website query script and an SSL Certificate analyser plug-in to inform me approximately how often my traffic is going through a Proxy with 'faked' CA Certificates....sigh...

I also have an Opera on hand in case none of the other 3 do what I want.

I have all three browsers: Chrome, Firefox and Safari next to each other on the Dock - Safari currently has a massive memory-leak - with some bad websites using up to 8GB of 'Safari Web Content' of the 10GB RAM on my Mac mini. This doesn't happen on Chrome! Problem with Chrome is that everything I type in Chrome appears in adverts around the webpage for the next few days - The Google Bubble effect!!!
I use Firefox as a TOR client for 'escaping the bubble' and with the TrackMeNot random website query script and an SSL Certificate analyser plug-in to inform me approximately how often my traffic is going through a Proxy with 'faked' CA Certificates....sigh...

I also have an Opera on hand in case none of the other 3 do what I want.

Its been mentioned a few times that Safari will take up any available RAM and release it when another programme requires it.

Don't worry about it.

__________________

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Its been mentioned a few times that Safari will take up any available RAM and release it when another programme requires it.

Don't worry about it.

OK I see your point, but the point which I might have forgot to mention is that Safari never actually delivers the webcontent of whichever script/pop-over/pop-under is trying to steal all my memory! My banking website just thrashes Safari, and no matter how long I leave it it never delivers the content, whilst my Mac mini slows to a crawl. Trying instead the mega-privacy compromising Chrome browser and the page is rendered in microseconds!

I've tried to analyse the page and see what is broken in Safari (It happened in previous Safari's but I'm now testing Version 6.0.3 (8536.28.4)) unfortunately my diagnostic tools & skills haven't yet got me anywhere near the script/secure-element that really does hard consume all available RAM